Impact of Anthropogenic Activities on Water Quality of The Paranhana River, Southern Brazil

Abstract

The Paranhana River, located in Southern Brazil, is one of the major tributaries of the Sinos River basin and receives mainly industrial and domestic effluents. In the present study, water physicochemical and microbiological analyses, condition factor, micronucleus test, gill histopathology and metal bioaccumulation in the muscle of the native fish Bryconamericus iheringii collected at two sites (S1 and S2) of the Paranhana River under different degrees of anthropogenic pressures were assessed in four sampling campaigns. Data from water quality parameters, condition factor, mucous cells proliferation in fish gills and bioaccumulation of chromium and manganese in muscle evidenced higher impacts at S2, whereas a higher genotoxic potential was observed at S1. Gill histopathological alterations were found in fish captured at both sampling sites. Temporal variations in all biomarkers analyzed and bioaccumulation of manganese and nickel were observed at S1, whereas only variations in condition factor, gill alterations and bioaccumulation of manganese and aluminum were found at S2. Our study evidences that S1 is under minor anthropogenic impacts and that the high urbanization at S2 reflects in a poor water quality. Nonetheless, the human consumption of fish from the Paranhana River should be avoided given the high concentrations of cadmium, chromium and lead.

Determination of water quality characteristics of river Yamuna at Baghpat, Uttar Pradesh, India during 2019- 2021

“…2). The trend of peak water temperature not corroborated to seasonality reflected the effect of anthropogenic and industrial interventions for the water quality in the riverine natural resources (Kanu and Achi, 2011;Khatri and Tyagi, 2015;Nyairo et al, 2015;Sidabutar et al, 2017;Dalzochio et al, 2019). The dissolved oxygen (DO) was recorded between the ranges of 2.5-5.9(4.7±0.38 mg/L) during two years investigation with peak value during monsoon season in both the years of investigation.…”

Analysis of the Influence of Anthropogenic Factors of the Urbanized Territory of Poltava Region (Ukraine) on the State of River Water

“…The negative impact of anthropogenic factors in some areas of the Paranhana River (Southern Brazil) is noted by the authors [Dalzochio et al, 2019]. Thus, the study of water status according to physical-and-chemical, microbiological parameters and the biota status in two areas determined the excess of a number of heavy metals in the area, which is more urbanized, while the accumulation of heavy metals in fish is observed in both studied areas.…”

Low Cost Electrochemical PGE Platform for Sensitive Determination of Pb(II) and Cd(II)

“…Cadmium and lead are non-essential and toxic heavy metals with adverse health effects. As a consequence of non-strict management of electronic or industrial waste, or activities such as mining, ions of these toxic metals are released into the environment dissolved in an aqueous media, causing contamination of soils and groundwater sources (1)(2)(3). Prolonged exposure, even to low concentrations, of lead and cadmium ions can cause a decrease in IQ and increase the risk of cancer, since they can bioaccumulate and inhibit the activity of proteins involved in the synthesis of antioxidants (4,5).…”